Ahimsa

To heal Supergirl, Alex assigns Brainiac-5 and Lena to find a way to remove the Kryptonite from Earth's atmosphere. Meanwhile, Mercy and Otis abduct aliens from a DEO facility and use them to attack children and spread fear, and Hank meets an ally in his fight.

Supergirl Season 4, Episode 4 - Ahimsa

Airdate: Nov 4, 2018